Update methods section with current available methods

Updated methods section of docs, with currently available methods. 
Added brief explanations to those that I have added.
Removed configuration section of docs as it appeared out of data and/or misleading.
Broke up larger paragraphs to make a little more readable.
`s/forth/fourth/`. Also, I think we should mention what this callback is for: determining whether or not a listener result should halt further execution of the event loop. I can change that on merge.